121011320311 has 8 divisors (see below), whose sum is σ = 138357797760. Its totient is φ = 103679629368.

The previous prime is 121011320299. The next prime is 121011320317. The reversal of 121011320311 is 113023110121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121011320311 - 2²⁹ = 120474449399 is a prime.

It is a super-2 number, since 2×121011320311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011320317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3679081 + ... + 3711826.

It is an arithmetic number, because the mean of its divisors is an integer number (17294724720).

Almost surely, 2^121011320311 is an apocalyptic number.

121011320311 is a deficient number, since it is larger than the sum of its proper divisors (17346477449).

121011320311 is an equidigital number, since it uses as much as digits as its factorization.

121011320311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7393253.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121011320311 its reverse (113023110121), we get a palindrome (234034430432).

The spelling of 121011320311 in words is "one hundred twenty-one billion, eleven million, three hundred twenty thousand, three hundred eleven".